Valve.



No. 635,537. Patented Oct. 24, I899. .L. .GASZ.

VALVE.

' (Application fllad m 11, 1899.)

(No Modal.) 2 Shuts-Sheet l.

G/(TQMJ No. 635,537. Patented Oct. 24, I899.

L. GASZ.

VALVE.

(Application filed my 17 1899.) (No Model.) 2 Sheets-Sheet 2.

FIG.3.

FIGA:

if 5 if FIG-6.

tlN TE STATES LOUIS GASZ, OF NEW YORK, N. Y.

VALVE.

SPECIFICATION forming part of Letters Patent No. 635,537, dated October24, 1899.

Application filed May 1'7, 1899. Serial No. 717,196. (N0 model.)

To all whom, it may concern:

Be it known that I, LOUIS GASZ, of the city of New York, borough ofBrooklyn, in the county of Kings and State of New York, have invented anew and Improved Valve, of which the following is a full, clear, andexact description.

This invention relates to improvements in valves, particularly forgoverning steam to the steam-cylinder of a direct-acting steampump; andthe object is to provide an auxiliary piston and a system of ports soarranged that the steam-supply to the cylinder will be completelybalanced and regular.

I will describe a valve embodying my in-.

vention and then point out the novel features in the appended claim.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a sectional plan view of a valve mechanism embodyingmyinvention. Fig. 2 is a vertical section of the same. Fig. 3 is apartial elevation and partial section on the line 3 3 of Fig. 1. Fig. 4cis a section similar to the section shown in Fig. 1, but showing theparts in different positions. Fig. 5 is a section on the line 5 5 ofFig. 2, and Fig. 6 is a section on the line 6 6 of Fig. 2.

Referring to the drawings, 1 designates a steam-cylinder in which thepiston 2 operates, and this cylinder has inlet-ports 3 4 and anexhaust-port 5. Arranged on the cylinder 1 is an auxiliary cylinder 6,in which is an auxiliary piston, which comprises two heads 7 8,connected bya stem 9. Movable with the piston 7 8 is a main valve 10,having a chamber 12 and a transverse port 13. This main valve has anupwardly-opening longitudinal slot 14 formed in it, in which the stem 9engages, and the said main valve is prevented from rotary movement bymeans of a pin 15, extended from the wall of the cylinder into said slot14. At one end of the cylinder 6 is an auxiliaryvalve cylinder 16, inwhich an auxiliary-pis ton valve 17 is arranged. This piston-valve 17has a piston-rod 18 extended through the head of the cylinder 16, andadjust-ably mounted on this piston-rod 18 are collars19 20, adapted tobe engaged by a tappet-arin 21, which has an opening through which therod 18 freely passes, and this arm 21 is extended from the rod 22 of thepiston 2.

At one side the auxiliary-piston valve 17 is provided with a recess 23,and at its opposite side it is provided with a recess 24. recessesextend circumferentially of the piston-valve and are designed to placecertain ports in communication, as willbe hereinafter described.Communication is provided between the cylinder 16 and the cylinder 6forward of the piston-head 7 through a port 25, and communication isprovided between said cylinder 16 and the cylinder 6 forward of thepiston-head 8 by a port 26. On one side of the piston-valve 17 anexhaust-port 27 leads from the cylinder 16 to the cylinder 6, and fromthe opposite side of said piston-valve 17 an exhaust-port 28 leads fromthe cylinder 16 to the cylinder 6.

A steam-inlet port leads through the walls of the cylinders at one sideand provides communication between the cylinder 6 and the cylinder 16,and its end terminating in the cylinder is in line with the end of theport 26 in said cylinder so that the two ports may be put intocommunication by the recess 24. At the opposite side a port 30 leadsfrom the cylinder 6 into the cylinder 16 and is designed to be put incommunication with the port 25 through the recess 23.

The piston-valve 17 has a port 31, which extends through the forward endof said piston-valve and out at one side, and a port 32 extends throughthe opposite end of said piston-valve and out through the opposite side.

The cylinder 6 has a steam-inlet 33, and while the parts are in theposition indicated in Figs. 1 and 2 steam is passing through the port 3to the front side of the piston 2 and an is passing through the port 1into the exhaust-port 5 and through the main valve 10. Steam forward ofthe piston-head 7 will remain until the tappet-arm 21 engages with thecollar 20 and moves the auxiliary-piston in the piston-valve 17 with theport 25, and the steam exhausts through the port 28 into theexhaust-port 5, and at the same time steam is admitted through the port29 into the recess 24 in the auxiliary-piston valve 17 into the port 26to the front side of the pisvalve 17 forward, which connects the port 31These exhaust from the opposite side of said piston ton-head S, forcingthe valve into the opposite position, as shown in Fig. 4. During thismovement of the piston-valve 17 the steam rearward of said piston willexhaust through the port 27 and to the port 5. It will be noted that theoutlet end of the port 27 is closed by the main valve 10 during a shortmovement of the valve 17. When the'valve 17 is in this oppositeposition, steam will be admitted through the port 29, the recess 24, andthe port 26 to the front side of the valve-head 8. The steam thusadmitted will force the main valve to its'opposite position and put theport 4 in communication with the live-steam entrance. During thismovement of the valve the steam forward of the head 7 will pass throughthe port 25 and the port 31 to the front side of the piston-valve 17,and it will exhaust through the port 28.

It will be seen in this invention that the auxiliary piston 7 governsthe admission of steam to the steam-cylinder 1 and the piston operatingin said steam-cylinder governs the movements of the valve 17. The valve17 is prevented from rotary movement by means of an arm 34, having ahorizontally-extended portion which passes through an opening in a fixedarm 35.

Having thus fully described my invention,

I claim as new and desire to secure by Letters Patent- The combinationWith a steam-cylinder and a piston therein, of an auxiliary cylindermounted on the steam-cylinder, an auxiliary piston in the auxiliarycylinder, a main valve operated by the auxiliary piston for governingports between the auxiliary cylinder and steam-cylinder, anauxiliary-valve cylinder on one end of the first-named auxiliarycylinder, an auxiliary valve in the valve-cylinder, the said auxiliaryValve having recesses in its opposite sides, each recess being adaptedto put two ports leading from the valveeylinder into theauxiliary-piston cylinder in communication, the said auxiliary valvealso having ports through its opposite ends and sides for connectingrespectively with ports leading from the auxiliary-valve cylinder to theopposite ends of the auxiliary piston, means operated by the piston inthe steamcylinder for shifting the auxiliary valve, and means forpreventing a rotary movement of the auxiliary valve.

' LOUIS GASZ.

Witnesses:

JAMES ADAIR, WILLIAM V. Bncxnn.

